    Your DOS command 2&gt; nul

Read page *[Using command redirection operators][1]*. Besides the &quot;2&gt;&quot; construct mentioned by Tanuki Software, it lists some other useful combinations.

  [1]: https://docs.microsoft.com/en-us/previous-versions/windows/it-pro/windows-xp/bb490982(v=technet.10)


I&#39;m building a HTML5 game and I am trying to put the mouse cursor over a certain control on a specific event so that moving in a specific direction always has the same result. Is this possible?

Move the mouse pointer to a specific position?

I want to make three ajax calls in a click event. Each ajax call does a distinct operation and returns back data that is needed for a final callback. The calls themselves are not dependent on one another, they can all go at the same time, however I would like to have a final callback when all three are complete.

    $(&#39;#button&#39;).click(function() {
        fun1();
        fun2();
        fun3();
    //now do something else when the requests have done their &#39;success&#39; callbacks.
    });
    
    var fun1= (function() {
        $.ajax({/*code*/});
    });
    var fun2 = (function() {
        $.ajax({/*code*/});
    });
    var fun3 = (function() {
        $.ajax({/*code*/});
    });


jQuery callback for multiple ajax calls

I have an application that logs a lot of noise to stderr and REALLY slows down the execution of the application. I would like to redirect that output to null. Is this possible with cmd.exe?


How to redirect stderr to null in cmd.exe

<p>I have an application that logs a lot of noise to stderr and REALLY slows down the execution of the application. I would like to redirect that output to null. Is this possible with cmd.exe?</p>


I&#39;m trying to find out of a certain link shorteners and out.php linkscripts redirect using 301 redirect or not. I&#39;m looking at the resources tab in Chrome&#39;s developer tools, but it only shows headers for the target page and not for the link scripts itself.

Also, some of the sites I&#39;m investigating actually redirect more than once, so it&#39;d be best if I could track the entire redirect path.

How can I see if how I was exactly redirected, and if they were using 301 or not?

See full redirect path and HTTP status code in Chrome

How do you redirect to a page from another page with JavaScript?



How do I redirect with JavaScript?

The differences between the various HTTP 3XX redirect codes are not clear to me.  Yes, I&#39;ve read the spec, but there seems to be some discrepancy between the standard and actual practice here.

The `301` redirect code seems clear enough: This means the resource was permanently moved to another URI, and future requests should use that URI.

And the `307` redirect code also seems clear: it means the redirect is temporary, and future requests should still use the original URI.

But I can&#39;t tell what the difference is between `302` and `303`, or why either of them are really different from `301`.  It seems that `302` was originally intended to be a *temporary* redirect, (like `307`), but in practice, most browsers treated it like a `303`.  But what&#39;s the difference between a `303` and a `301`?  Is `301` supposed to mean the redirect is *more* permanent?



Difference between HTTP redirect codes

I want to redirect requests on two conditions using nginx. 

This doesn&#39;t work:

      if ($host = &#39;domain.com&#39; || $host = &#39;domain2.com&#39;){
        rewrite ^/(.*)$ http://www.domain.com/$1 permanent;
      }   

What is the correct way to do this?



nginx.conf redirect multiple conditions

I want to redirect the Index action of the Home controller to another controller&#39;s action and nothing else. My code is thus:

        public void Index()
        {
            //All we want to do is redirect to the class selection page
            RedirectToAction(&quot;SelectClasses&quot;, &quot;Registration&quot;);
        }

Right now, this just loads a 0 kB blank page and does nothing. I have a feeling it has something to do with that void return type, but I don&#39;t know what else to change it to. What&#39;s the issue here?

ASP.NET MVC 3 - redirect to another action

I&#39;m having trouble figuring out how to both echo to the standard error stream and redirect the error stream of an executable.

I have come from a [Bourne shell][1] and [Korn shell][2] background, of which I would use;

    # Write to stderr
    echo &quot;Error Message!&quot; &gt;&amp;2

    # Redirect stderr to file
    /do/error 2&gt;/tmp/err.msg

  [1]: https://en.wikipedia.org/wiki/Bourne_shell
  [2]: https://en.wikipedia.org/wiki/Korn_shell


How do I write to standard error in PowerShell?

there has been many previous questions about redirecting  stdout/stderr to a file. is there a way to redirect  stdout/stderr to a string?

redirect stdout/stderr to a string

There are several ways to write to stderr:

    # Note: this first one does not work in Python 3
    print &gt;&gt; sys.stderr, &quot;spam&quot;

    sys.stderr.write(&quot;spam\n&quot;)

    os.write(2, b&quot;spam\n&quot;)

    from __future__ import print_function
    print(&quot;spam&quot;, file=sys.stderr)

That seems to contradict *zen of Python #13* &lt;sup&gt;†&lt;/sup&gt;, so what&#39;s the difference here and are there any advantages or disadvantages to one way or the other? Which way should be used?

&lt;sup&gt;†&lt;/sup&gt; &lt;sub&gt;There should be one — and preferably only one — obvious way to do it.&lt;/sub&gt;


How to print to stderr in Python?

In Ruby, what is the difference between `$stdout` (preceded by a dollar sign) and `STDOUT` (in all caps)? When doing output redirection, which should be used and why? The same goes for `$stderr` and `STDERR`.

**Edit:** Just found a [related question](https://stackoverflow.com/questions/4279604/what-is-the-difference-between-stdin-and-stdin-in-ruby).

Difference between $stdout and STDOUT in Ruby

Is it possible to temporarily redirect stdout/stderr in Python (i.e. for the duration of a method)?

### Edit:

The problem with the current solutions (which I at first remembered but then forgot) is that they don&#39;t *redirect*; rather, they just replace the streams in their entirety. Hence, if a method has a ***local* copy** of one the variable for any reason (e.g. because the stream was passed as a parameter to something), it won&#39;t work.

Any solutions?

Temporarily Redirect stdout/stderr

I know you can do right click properties -&gt;layout and there change it manually.

But how would you go about changing it from a Windows batch script?

I know you can change size of it from script using something like this

   `MODE CON: COLS=90 LINES=10`

But how can you change buffer size?

The script will run for a while and sometimes before failing and exiting it takes some time, so I need larger buffer.



How to change Screen buffer size in Windows Command Prompt from batch script

What is the best command to move all files from one folder to another?

I want to do this from within a batch file.

How can I move all the files from one folder to another using the command line?

How do I call another batch script from within a batch script?

I want it to execute in an `if` statement.


How do I run a batch script from within a batch script?

My OS is Windows Vista.  I need to have a &quot;.bat&quot; file where I need to check if user enters any command-line parameter or not.   If does then if the parameter equals to `-b` then I will do something otherwise I will flag &quot;Invalid input&quot;. If user does not enter any command-line parameter then I will do something. I have created following .bat file. It works for `-b` and not-equal to `-b` cases - but it fails when user does not pass any command-line parameter.

I always get error:

    GOTO was unexpected at this time.

Can anyone tell me what am I doing wrong here?

&lt;hr&gt;

    ECHO OFF
    CLS
    ECHO.
    
    IF [%1]==[/?] GOTO BLANK
    
    IF %1==&quot;-b&quot; GOTO SPECIFIC
    
    IF NOT %1==&quot;-b&quot; GOTO UNKNOWN
    
    :SPECIFIC
    
    ECHO SPECIFIC
    
    GOTO DONE
    
    :BLANK
    
    ECHO No Parameter
    
    GOTO DONE
    
    :UNKNOWN
    
    ECHO Unknown Option
    
    GOTO DONE
    
    :DONE
    
    ECHO Done!



How to check command line parameter in &quot;.bat&quot; file?

Using the windows command prompt, can I echo %path% and get the resulting paths on separate rows?
Something like this but for windows: 

    echo $path | tr &#39;:&#39; &#39;\n&#39;

Can I do this with vanilla cmd or do I need powershell or js scripting?

Example echo %path% output:

    C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\Program Files\Microsoft SQL Server\80\Tools\Binn\;C:\Program Files\Microsoft SQL Server\90\DTS\Binn\;C:\Program Files\Microsoft SQL Server\90\Tools\binn\;C:\Program Files\Microsoft SQL Server\90\Tools\Binn\VSShell\Common7\IDE\;C:\Program Files\Microsoft Visual Studio 8\Common7\IDE\PrivateAssemblies\;

Desired output:

    C:\WINDOWS\system32;
    C:\WINDOWS;
    C:\WINDOWS\System32\Wbem;
    C:\Program Files\Microsoft SQL Server\80\Tools\Binn\;
    C:\Program Files\Microsoft SQL Server\90\DTS\Binn\;
    C:\Program Files\Microsoft SQL Server\90\Tools\binn\;
    C:\Program Files\Microsoft SQL Server\90\Tools\Binn\VSShell\Common7\IDE\;
    C:\Program Files\Microsoft Visual Studio 8\Common7\IDE\PrivateAssemblies\;



Content Type	Original Author	Original Content on Stackoverflow
Question	Ignacio Soler Garcia	View Question on Stackoverflow
Solution 1 - Redirect	atzz	View Answer on Stackoverflow

How to redirect stderr to null in cmd.exe

Redirect Problem Overview

Redirect Solutions

Solution 1 - Redirect

jQuery callback for multiple ajax calls

Move the mouse pointer to a specific position?

Attributions